Home / 212,077.59-318,108.08-71,836.21

Finding the Fourth Proportional to 212,077.59, 318,108.08 and 71,836.21

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Solution

The fourth proportional to 212,077.59, 318,108.08 and 71,836.21 is: 107,751.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,077.59 : 318,108.08 = 71,836.21 : x
  2. Step 2: Convert to fraction form
    212,077.59/318,108.08 = 71,836.21/x
  3. Step 3: Cross multiply
    212,077.59x = 318,108.08 × 71,836.21
  4. Step 4: Simplify right side
    212,077.59x = 22,851,678,478.40
  5. Step 5: Solve for x
    x = 22,851,678,478.40/212,077.59
  6. Step 6: Final answer
    x = 107,751.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.